JPH02141830U

JPH02141830U -

Info

Publication number: JPH02141830U
Application number: JP1989052018U
Authority: JP
Priority date: 1989-05-01
Filing date: 1989-05-01
Publication date: 1990-11-29
Anticipated expiration: 2004-05-01
Also published as: JPH073298Y2

Description

[Brief explanation of drawings]

第１図は本考案汚泥沈降界面検知器におけるワ
イパー斜視図であつて、ＡおよびＢは側面Ｎ字型
に構成した事例、Ｃは側面Ｍ字型に構成した事例
、Ｄは側面逆Ｍ字型に構成した事例を示す。第２
図はワイパー機構を別途支持機構によつて定位置
に支持せしめた事例における本考案検知器の要部
縦断側面図であつて、Ａはフロート上昇時の状態
を示し、Ｂはフロート下降時の状態を示す。第３
図は第２図の実施例におけるフロートの横断平面
図である。第４図はワイパー機構を別途昇降装置
の操作で昇降作動させるようにした事例における
本考案検知器の要部縦断側面図であつて、Ａはワ
イパー下降時の状態、Ｂはワイパー上昇時の状態
を示す。第５図は第４図の実施例におけるフロー
トの横断平面図である。第６図は公知の透過型光
センサーを用いた汚泥沈降界面検知器の感知部の
側面図である。１……フロート、１ａ，１ｂ……鉛直面、２ａ
……投光面、２ｂ……受光面、４ａ，４ｂ……昇
降ガイド、５ａ，５ｂ……鉛直板、６……傾斜板
、６ａ，６ｂ……両側縁部、６ｈ……汚泥落下孔
、７……ワイパー機構、ｇ……所定の間隙。 Figure 1 is a perspective view of the wiper in the sludge sedimentation interface detector of the present invention, where A and B are cases where the sides are configured in an N-shape, C is an example in which the sides are configured in an M-shape, and D is a case where the sides are configured in an inverted M-shape. An example of the configuration is shown below. Second
The figure is a longitudinal sectional side view of the main part of the sensor of the present invention in an example in which the wiper mechanism is supported in a fixed position by a separate support mechanism, where A shows the state when the float is raised and B shows the state when the float is lowered. shows. Third
The figure is a cross-sectional plan view of the float in the embodiment of FIG. 2. Fig. 4 is a longitudinal sectional side view of the main part of the sensor of the present invention in an example in which the wiper mechanism is raised and lowered by operating a separate lifting device, where A is the state when the wiper is lowered and B is the state when the wiper is raised. shows. FIG. 5 is a cross-sectional plan view of the float in the embodiment of FIG. 4. FIG. 6 is a side view of a sensing portion of a sludge settling interface detector using a known transmission type optical sensor. 1...Float, 1a, 1b...Vertical surface, 2a
...Light projection surface, 2b ... Light receiving surface, 4a, 4b ... Lifting guide, 5a, 5b ... Vertical plate, 6 ... Inclined plate, 6a, 6b ... Both side edges, 6h ... Sludge fall hole, 7... Wiper mechanism, g... Predetermined gap.

Claims

[Scope of Claim for Utility Model Registration] [Claim 1] A float 1 that rises and falls in response to increases and decreases in the water level in a sewage treatment tank is provided with vertical surfaces 1a and 1b facing each other with a predetermined gap g maintained therebetween. The gap g is formed so that the water in the tank flows, and the sensing part of the transmission type optical sensor is arranged so that the light emitting surface 2a and the light receiving surface 2b are concentrically opposed to each other at a predetermined interval through the water in the tank. In a sludge settling interface detector configured to detect a change in transmitted light caused by the sludge interface passing through the location where the optical sensor sensing section is disposed,
Linear or planar lifting guides 4a, 4 are provided at positions perpendicular to the vertical surfaces 1a, 1b across the gap g.
vertical plates 5 which are vertically disposed facing each other, fit into the gap g, and movably face the lifting guides 4a and 4b;
a, 5b are connected by an inclined plate 6, and the inclined plate 6
A wiper mechanism 7 is formed by forming a wiper mechanism 7 by forming a wiper mechanism 7 in such a manner that both side edges 6a, 6b are in sliding contact with the vertical surfaces 1a, 1b, respectively. 6. A sludge settling interface detector characterized in that it is configured to be wiped by both side edges 6a, 6b of 6. [Section 2] The sludge settling interface detector according to Item 1, wherein a sludge fall hole 6h is bored in the lower part of the inclined plate 6 constituting the wiper mechanism 7. [Section 3] The wiper mechanism 7 having an N-shaped side surface is configured by connecting the vertical plates 5a and 5b in an oblique manner with an inclined plate 6. Sludge settling interface detector. [Section 4] The wiper mechanism 7 has a side M-shape or an inverted M-shape by connecting the vertical plates 5a and 5b with a V-shaped or inverted V-shaped inclined plate 6. The sludge settling interface detector according to item 1 and item 2. [Section 5] The wiper mechanism 7 in the gap g is supported in a fixed position by a separate support mechanism, so that as the float 1 moves up and down, the vertical surfaces 1a and 1b are aligned with both side edges 6a of the inclined plate 6.
, 6b, wherein the sludge settling interface detector is configured to slide up and down while being rubbed by the sludge settling interface detector. [Section 6] By raising and lowering the wiper mechanism 7 in the gap g at appropriate times by operating a separate lifting device, the both side edges 6a and 6b of the inclined plate 6 slide up and down while wiping the vertical surfaces 1a and 1b. 5. The sludge settling interface detector according to claim 1, 2, 3, and 4, wherein the sludge settling interface detector is configured to move.